Once potential energy has been converted into kinetic energy, one of two things can happen. The kinetic energy may be and made useful, or it may be

Yes.

Explanation:

Energy can always be transformed from one form to another form.

E.g. Throw a ball in upward direction ,so it will have some kinetic energy due to its mass and velocity. At some height ball will stop and will start coming down.

the correct answer: the index of refraction of the second medium is lower i tried this persons answer and it was wrong this person is lying

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